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Linux/drivers/hid/hid-gyration.c

  1 /*
  2  *  HID driver for some gyration "special" devices
  3  *
  4  *  Copyright (c) 1999 Andreas Gal
  5  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  6  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
  7  *  Copyright (c) 2008 Jiri Slaby
  8  *  Copyright (c) 2006-2008 Jiri Kosina
  9  */
 10 
 11 /*
 12  * This program is free software; you can redistribute it and/or modify it
 13  * under the terms of the GNU General Public License as published by the Free
 14  * Software Foundation; either version 2 of the License, or (at your option)
 15  * any later version.
 16  */
 17 
 18 #include <linux/device.h>
 19 #include <linux/input.h>
 20 #include <linux/hid.h>
 21 #include <linux/module.h>
 22 
 23 #include "hid-ids.h"
 24 
 25 #define gy_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
 26                                         EV_KEY, (c))
 27 static int gyration_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 28                 struct hid_field *field, struct hid_usage *usage,
 29                 unsigned long **bit, int *max)
 30 {
 31         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
 32                 return 0;
 33 
 34         set_bit(EV_REP, hi->input->evbit);
 35         switch (usage->hid & HID_USAGE) {
 36         /* Reported on Gyration MCE Remote */
 37         case 0x00d: gy_map_key_clear(KEY_HOME);         break;
 38         case 0x024: gy_map_key_clear(KEY_DVD);          break;
 39         case 0x025: gy_map_key_clear(KEY_PVR);          break;
 40         case 0x046: gy_map_key_clear(KEY_MEDIA);        break;
 41         case 0x047: gy_map_key_clear(KEY_MP3);          break;
 42         case 0x048: gy_map_key_clear(KEY_MEDIA);        break;
 43         case 0x049: gy_map_key_clear(KEY_CAMERA);       break;
 44         case 0x04a: gy_map_key_clear(KEY_VIDEO);        break;
 45         case 0x05a: gy_map_key_clear(KEY_TEXT);         break;
 46         case 0x05b: gy_map_key_clear(KEY_RED);          break;
 47         case 0x05c: gy_map_key_clear(KEY_GREEN);        break;
 48         case 0x05d: gy_map_key_clear(KEY_YELLOW);       break;
 49         case 0x05e: gy_map_key_clear(KEY_BLUE);         break;
 50 
 51         default:
 52                 return 0;
 53         }
 54         return 1;
 55 }
 56 
 57 static int gyration_event(struct hid_device *hdev, struct hid_field *field,
 58                 struct hid_usage *usage, __s32 value)
 59 {
 60 
 61         if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput)
 62                 return 0;
 63 
 64         if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK &&
 65                         (usage->hid & 0xff) == 0x82) {
 66                 struct input_dev *input = field->hidinput->input;
 67                 input_event(input, usage->type, usage->code, 1);
 68                 input_sync(input);
 69                 input_event(input, usage->type, usage->code, 0);
 70                 input_sync(input);
 71                 return 1;
 72         }
 73 
 74         return 0;
 75 }
 76 
 77 static const struct hid_device_id gyration_devices[] = {
 78         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
 79         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
 80         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
 81         { }
 82 };
 83 MODULE_DEVICE_TABLE(hid, gyration_devices);
 84 
 85 static struct hid_driver gyration_driver = {
 86         .name = "gyration",
 87         .id_table = gyration_devices,
 88         .input_mapping = gyration_input_mapping,
 89         .event = gyration_event,
 90 };
 91 module_hid_driver(gyration_driver);
 92 
 93 MODULE_LICENSE("GPL");
 94 

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